LONGi Green Energy Technology Co. Ltd. (Chinese: 隆基绿能科技股份有限公司) or LONGi Group (隆基股份), formerly Xi'an Longi Silicon Materials Corporation, is a major Chinese manufacturers of photovoltaic solar modules and a developer of solar power projects. LONGi is the world largest manufacturer of monocrystalline silicon wafers and is listed on the Shanghai Stock Exchange.